In many blockchains, there is a lack of incentive to pursuit network security. Participants care a lot about individual security -- whether my money is safe, whether my node can be hacked, but they care much less about network security -- whether the network is slow, whether other contracts will break, whether systematic attack may be possible. (1/2)
This especially applies if the chain needs constant hard forks, but does not have a clear leader team. With it, the team will take care of network security. (Ethereum, Zcash, Monero, etc.) However, without it, development teams will simply choose to carry out things with the most marketing potential, or just looks the most shinny. (Ethereum Classic, etc.) (2/2)
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